David Weinstein practices civil and criminal litigation and trial practice, with an emphasis on environmental and business matters.

David lectures and writes on a regular basis on both environmental and business issues. This has included presentations at the Annual National Seminar on the Federal Sentencing Guidelines, the National Association of Environmental Law Societies Conference, The Florida Bar "statewide" meetings, the Florida Chamber's Annual Environmental Permitting School, as well as Federal Bar Association, Florida Bar Association, Hillsborough County Bar Association, and numerous other legal and business courses. David has authored: "The Amount in Controversy Requirement, Issues of Valuation and Viewpoint," Federal Bar News & Journal (June/July, 1991); "Defending Against an Application for Injunctive Relief in an Environmental Case," Federal Bar News & Journal (July, 1992); "Employee Confidentiality and Covenants Not to Compete - Protecting Your Corporate Assets," Employment Regulations in Florida (Institute of Business Law, California State University, Los Angeles, 1994, 1996); "Regulation of Underground Storage Tanks," Florida Survey Issues: Recognition and Remediation (National Business Institute, 1994 and 1995); "Superfund: A Legislative and Administrative Update," Environmental Management Review (First Quarter, 1996); "Comprehensive Environmental Response, Compensation and Liability Act (a Superfund Update)," (Government Institutes, 1998); "General Overview of Subtitle C of the Resource Conservation and Recovery Act," (Government Institutes, 1999); "When Does An Environmental Matter Become A Criminal Case?" (Florida Chamber of Commerce Environmental Permitting Summer School, 2000); "What Makes An Environmental Matter A Criminal Case?" The Lawyer, (Hillsborough County Bar Association, September, 2000); "A Basic Overview of Major, Federal Environmental Laws - Part I," The Lawyer (October, 2000); "A Basic Overview of Major, Federal Environmental Laws - Part II," The Lawyer (November, 2000); "Environmental Crimes and the Consequences of Conviction" (Florida Chamber of Commerce Environmental Permitting School, 2001); "An Overview of Proposed Changes for the 2001 Legislative Session, Part I: Environmental Litigation Reform Act," The Lawyer (April, 2001); "An Overview of Proposed Changes for the 2001 Legislative Session, Part II: Performance Based Permitting," The Lawyer (May, 2001); "The Primary Jurisdiction Doctrine in Environmental Cases," The Lawyer (June, 2001); "Criminal Environmental Enforcement - Serious Consequences for Non-Compliance," (Florida Chamber of Commerce Environmental Permitting Summer School, 2001); "The Responsible Corporate Officer Doctrine," The Lawyer (October, 2001); "The MTBE Controversy," The Lawyer, (November, 2001); "The Toxic Substances Control Act," (Government Institutes, 2002); "Hanousek, Hong, and Hansen: Pushing the Envelope of the Criminalization of Environmental Law," (Florida Chamber of Commerce Environmental Permitting Summer School, 2002); "Recent Decisions Expand Criminalization of Environmental Law," The Lawyer (September, 2002); "Class Certification Denied in MTBE Gasoline Additive Litigation," Florida Specifier (October, 2002); "The Expanding Criminalization of Environmental Laws: The recent decisions in Hanousek, Hong, and Hansen," The Florida Bar Journal (January, 2003); “Private Causes of Action for Pollution Damages Pursuant to Section 376.313, Florida Statutes,” The Lawyer (February, 2003); “Attorney-Client Privilege Issues for Environmental Consultants and Executives,” (Florida Chamber of Commerce Environmental Permitting Seminar, February, 2003); “EPA Issues Guidelines and Seeks Information in Response to Supreme Court Ruling,” The Lawyer (March, 2003).

David is rated "AV," the highest rating for a lawyer given by Martindale-Hubbell Law Directory. His service to the legal profession and the community includes positions as: Chairman of the Environmental and Land Use Law Section of the Hillsborough County Bar Association; Chairman of the City of Tampa Board of Ethics; a Master Lawyer in the Tampa Bay Inn of Court; Board President of The Cambridge School for learning disabled students; and as a member of the Environmental Litigation Committee of the American Bar Association's Section of Litigation, the Environmental Crimes and Enforcement Committee of the ABA's Section of Environment, Energy and Resources, and the National Association of Criminal Defense Lawyers. A Fourth Degree Black Belt, David is the Senior Instructor of Tampa Moo Duk Kwan, a non-profit martial arts club.

David is a member of The Florida Bar and the District of Columbia Bar and also is admitted to the bars of the U.S. Supreme Court, Eleventh Circuit Court of Appeals, and the U.S. District Courts for the Northern District of Florida, Middle District of Florida, Southern District of Florida, and District of Puerto Rico. He received his undergraduate and law degrees from the University of Florida, where he was a member of Florida Blue Key, Omicron Delta Kappa, and the Trial Competition Team.